Refrigeration



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UNITED STATES- 1,661,381 PATENT; oFFlcE.

OWEN F. NELSON,IOF DETROIT, MICHIGAN, ASSIGNOR T0 COPEIAND PRODUCTSINC., OF DETROIT, MICHIGAN, A CORPORATIOILOF MICHIGAN.

IREFRIGERATION.

nppneanon mea January 2s, 1926. seriai No. 84,478.

It is -the primary object of my invention to provide a refrigerationbrine ytank having piping or coils therein so disposed that the coolingeffect upon the brine tank will be 5 substantially equally distributedaround the ice trays therein, and so proportioned and distributed lwithreference to the remaining piping or coils in the tank as to-freezewater Ain the trays before cooling the entire tank.

Another. object of my invention is to provide an arrangement of suchpiping or coils so made that the same constitute a unit which may befitted in the brine tank after its formation. l5

as the specification progresses.

My invention consists in the arrangement, combination and constructionof thevarious parts of my improved device, as described in Fig. 2 is anelevation showingithe piping or coils utilized in my invention on theline- 2-2, of Fig. 3.

'Fig. 3 is an elevation showing my im proved arrangement of piping orcoils assembled in a refrigeration brine tank.

I have Vshown a refrigeration brine tank indicated generally as 5,having an intake fitting 6 and an o'take fitting 7. A'continuous pipingis arranged in the tank 5 leading from the intake fitting 6 to theofftake fitting 7. As will be seen in Fig. 3, the piping leadsdownwardlyfrom the intake 6, as at 8, to the bottom of the fbrine tank,where it is bent, as at 9, and extends across the bottom 4o of the tank,asat 10, is then again bent, as at 11, to again extend across the tankas illustrated by the ortion 12; is again bent, as at 13, to provi e aortion 15 extending across' the tank; is agam bent, asiat 16, to

provide a portion 17 extending across the tank.; is again bent, as at18, to provide a portion 19 extending across the tank, and is againbent, as at 20, to rovide a portion 21 extending across the tan Thisplurality of bends is best illustrated in Fig. 1 of the drawings, fromwhich it will be seen that` the piping has been extended invariousreturn bends to form six transverse extensions across the bottomof the brine tank. The

Other and further objects will beapparenttion of thisreturn bentconstruction, the pipe 'extends upwardly as at132 to the top oftherefrigerator brine tank, where it is wound in a series of pari cakecoils, beginning with the large coil 33 to the small coil 34. Such coilsare continued from the small coil 34 in enlarged, instead of decreased,diameter to the bottom coil 35, from which the pip? extends upwardly, asat 36, to the out- It will be apparent from the above describedarrangement of the pipe or coils that the liquid refrigerant enteringthe intake {itting will be first passed through the piping around thevarious ice tray sections 1n the brine' tank, through an arrangement ofcoils which are not of sufficient length to ordinarily cause boiling ofthe refrigerant before it has passed the top iclJ tray section. The re-Y sult is that the water ice trays in the ice tray sections 28, 29, 30and 31 will `be frozen before the entire brine tank has been cooled tothe required point, with theconsequent result that the user may have icepromptly instead of being forced to wait until the entire refri eratingelement has been cooled sufficient y to freeze water in the ice trays.The arrangement of pan cake coils above the ice tray sections addssufficient length to the piping, through which the refrigerating liquidis passed, tocool the entire brine tank in the ordinary way.

It will also be apparent that the piping, orcoil construction, can bemade in a unit, as shown in Fig. 2 of the drawings and may be placed inthe brine tank lby simply pushing the same therein with the ice traysections 28, V29, 30 and 31 extending through the spaces 24, 25, 26 and27.

It will be obvious that various changes maybe made in the arrangement,combination and construction of the various parts of my improved devicewithout departing from the spirit of my invention, and it is tendingthrough the tank wall, said piping being extended from the intake toform return bent coils of single layers of piping directly under andover said tray sections and coils of a plurality of superposed layers ofpiping removed from the tray sections.

.3. A construction as set forth in claim 2.

wherein said superposed layers of piping are of varying circumferences.

4. A construction as set forth in claim 2 wherein said piping is formedas a unit with the space between said single layers unobstructed in atleast one direction to receive the tray sections.

OWEN AF. NELSON.

